Skip the clicks. Start testing at scale.
Run collections across data and environments without the hassle of inconsistent runs or endless clicking, so you move faster and your team stays in sync.

Run any workflow
From simple requests to multi-step scenarios, Collection Runner provides end-to-end execution. No more testing endpoints one by one.
Update once, reach everyone
Post updates in your public workspace and instantly notify watchers so every developer is in sync with the latest changes.
Validate in every environment
Keep tests consistent by swapping environments, not rewriting requests. Catch environment-specific issues before they reach users.
Run complex workflows with ease
Test full collections that mirror real-world usage. From simple chains to multi-step workflows, Collection Runner keeps requests in order, giving you confidence that your API works from start to finish.


Test across environments
Test across dev, staging, and production without rewriting. Collection Runner uses environment variables to keep runs consistent and reliable everywhere.
Data-driven testing at scale
Upload CSV or JSON files to run workflows against hundreds of inputs. Quickly uncover edge cases, validate performance, and strengthen API reliability without extra setup.


Simulate real-world load
Test traffic with virtual users, track key metrics in real time, and spot bottlenecks before they reach production.
For API development teams
Scale with collections
Collection Runner lets you test and validate entire workflows at scale, while collections keep those workflows organized and reusable across your team.
Postman Collections have transformed API testing, enabling us to experiment quickly and efficiently when developing new features or implementing changes.”
Benny Yamagata
Senior Software Engineer, NetDocuments
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Postman helps teams collaboratively build APIs that power workflows and intelligent agents. With support for the Model Context Protocol (MCP), your APIs are integration ready. Learn how top teams avoid pitfalls and rescue APIs from chaos.